[INFO] fetching crate wasmer-engine-object-file 1.0.2...
[INFO] checking wasmer-engine-object-file-1.0.2 against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] extracting crate wasmer-engine-object-file 1.0.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate wasmer-engine-object-file 1.0.2 on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmer-engine-object-file 1.0.2
[INFO] finished tweaking crates.io crate wasmer-engine-object-file 1.0.2
[INFO] tweaked toml for crates.io crate wasmer-engine-object-file 1.0.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ad3f8ff9982a46b5f9677deaf86418f2fa9da81b9d6df797166414e2affdf14d
[INFO] running `Command { std: "docker" "start" "-a" "ad3f8ff9982a46b5f9677deaf86418f2fa9da81b9d6df797166414e2affdf14d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad3f8ff9982a46b5f9677deaf86418f2fa9da81b9d6df797166414e2affdf14d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad3f8ff9982a46b5f9677deaf86418f2fa9da81b9d6df797166414e2affdf14d", kill_on_drop: false }`
[INFO] [stdout] ad3f8ff9982a46b5f9677deaf86418f2fa9da81b9d6df797166414e2affdf14d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7ef55530c0b2db2bc88fe773ff6e33e7f128622bfdad16b25c803544129d7f5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a7ef55530c0b2db2bc88fe773ff6e33e7f128622bfdad16b25c803544129d7f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking leb128 v0.2.4
[INFO] [stderr]    Compiling wasmer-vm v1.0.2
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking backtrace v0.3.59
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling darling_core v0.12.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling darling_macro v0.12.4
[INFO] [stderr]    Compiling darling v0.12.4
[INFO] [stderr]     Checking thiserror v1.0.25
[INFO] [stderr]    Compiling enumset_derive v0.5.4
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking enumset v1.0.6
[INFO] [stderr]     Checking serde v1.0.126
[INFO] [stderr]     Checking cranelift-entity v0.68.0
[INFO] [stderr]     Checking indexmap v1.6.2
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking wasmer-types v1.0.2
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]     Checking wasmer-compiler v1.0.2
[INFO] [stderr]     Checking wasmer-engine v1.0.2
[INFO] [stderr]     Checking wasmer-object v1.0.2
[INFO] [stderr]     Checking wasmer-engine-object-file v1.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `target`
[INFO] [stdout]  --> src/builder.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     target: Option<Target>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `features`
[INFO] [stdout]  --> src/builder.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     features: Option<Features>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `prefixer`
[INFO] [stdout]    --> src/engine.rs:181:5
[INFO] [stdout]     |
[INFO] [stdout] 181 |     prefixer: Option<Box<dyn Fn(&[u8]) -> String + Send>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `target`
[INFO] [stdout]  --> src/builder.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     target: Option<Target>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `features`
[INFO] [stdout]  --> src/builder.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     features: Option<Features>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `prefixer`
[INFO] [stdout]    --> src/engine.rs:181:5
[INFO] [stdout]     |
[INFO] [stdout] 181 |     prefixer: Option<Box<dyn Fn(&[u8]) -> String + Send>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.46s
[INFO] running `Command { std: "docker" "inspect" "a7ef55530c0b2db2bc88fe773ff6e33e7f128622bfdad16b25c803544129d7f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7ef55530c0b2db2bc88fe773ff6e33e7f128622bfdad16b25c803544129d7f5", kill_on_drop: false }`
[INFO] [stdout] a7ef55530c0b2db2bc88fe773ff6e33e7f128622bfdad16b25c803544129d7f5